TING-WAI CHIUZenkin, S.V.S.V.Zenkin2018-09-102018-09-10199915507998http://www.scopus.com/inward/record.url?eid=2-s2.0-16644364094&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/349695We analyze the general solutions of the Ginsparg-Wilson relation for lattice Dirac operators and formulate a necessary condition for such operators to have a nonzero index in the topologically nontrivial background gauge fields. © 1999 The American Physical Society.journal article10.1103/PhysRevD.59.0745012-s2.0-16644364094WOS:000079466900034